| Conveyor belt cleaner replaceable scraper blade tip and pocket and method of manufacturing same -> Monitor Keywords |
|
|
 
Conveyor belt cleaner replaceable scraper blade tip and pocket and method of manufacturing sameRelated Patent Categories: Conveyors: Power-driven, Conveyor Having Impinging Fluid To Feed, Shift Or Discharge Load; Or Means To Facilitate Cleaning Of Conveyor; Or Sterilizing Or Lubricating Means, Having Cleaning Means, By Conveyor Contacting ScraperConveyor belt cleaner replaceable scraper blade tip and pocket and method of manufacturing same description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070089968, Conveyor belt cleaner replaceable scraper blade tip and pocket and method of manufacturing same. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of U.S. provisional application No. 60/730,464 filed on Oct. 26, 2005. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to conveyor belt cleaners for use in connection with conveyor belts used for handling bulk solid materials or unit handling, and more specifically to conveyor belt scraper blades incorporating a permanent pocket associated with the conveyor belt cleaner cross-shaft and using removable and replaceable scraper blade tips that securely insert within the pocket. [0004] 2. Description of Related Art [0005] Conveyor belt cleaners are used to remove materials that cling to the return run of conveyor belts after the belt has discharged its cargo. The cargo can be units such as letters or cartons or bulk solid materials including sand or gravel. The bulk solid materials that do not discharge from the belt at the desired discharge location through the action of gravity or centrifugal force accumulates on components of the belt cleaner or the conveyor belt surface causing productivity, cleanliness or safety problems. Conveyor belt cleaners are designed to be used with conveyor belts of various widths and speeds including use on very side, fast moving belts such as the MARTIN.RTM. SHD.TM. Belt Cleaner. A typical wide, high speed conveyor belt is 2.8 m (110 in.) in width and travels at approximately 7.5 m/s (1500 ft/min). [0006] Referring to FIG. 1, prior art belt cleaners for side, fast moving belts 8 embody a unitary urethane scraper blade 10 with a metal insert or inserts cast into the base of the blade to facilitate attachment of the blade to the support frame 12. The inserts 14, shown in detail in FIGS. 2-5, are fabricated metal inserts comprising a horse-shoe shaped upper section 16 and a base portion 18. The upper section 16 allow the urethane material to flow through as the blade 10 is being cast, creating a mechanical lock between the insert 14 and the blade 10. The base portion 18 includes threaded apertures 20 located to align with apertures (not shown) in the support frame 12 (FIG. 1) and configured to receive correspondingly threaded bolts 22 (FIG. 1) for securing the scraper blade 10 to the support frame 12. The number of inserts used correlates to the blade width. Several blades are mounted in line on the support frame to crate a single unitary blade. The blades must be precisely positioned to prevent gaps or misalignment in the blades which could trap foreign material or allow the material adhering to the belt to create a hydroplaning action between the scraper blades and the conveyor belt. For these reasons, the holes in the support frame and location of the inserts in the blades must be within a close tolerance of a few millimeters. [0007] There have been several attempts to design a blade with a replaceable tip and reusable base made from urethane or reinforced urethane. With smaller belt cleaner blades it is possible to design such a system; the Roxon.TM. is one system designed for smaller belt cleaners. However, the extreme conditions and high forces involved is super heavy duty installations have lead to failed attempts to use a urethane base and replaceable tip. [0008] The arrangement shown in FIGS. 1-5 exhibits many drawbacks. First, the inserts in this design are not easily removed from the blade for purposes of recycling or reuse with a different scraper blade. Moreover, the inserts must be precisely placed into the mold while the blade is cast to maintain proper alignment with the bolt holes in the support frame. Additionally, the support frame is biased to adjust the position of the scraper blade to maintain engagement between the scraper blade and conveyor belt surface as the blade wears down. Accordingly, the distance the support frame is located from the conveyor belt is determined by the size and position of the insert location within the blade to prevent the metal of the insert from coming into contact with the belt surface in the event the blade wears down beyond its useful life. [0009] The present inventive scraper blade addresses these and other concerns associated with the prior art. BRIEF SUMMARY OF THE INVENTION [0010] A preferred embodiment of the conveyor belt cleaner system for cleaning a surface of conveyor belt comprises: a support frame comprising a top surface; a pocket extending from the top surface of the support frame, the pocket comprising a front and back wall and sidewalls defining a pocket space, the front and back walls each comprising a concentrically aligned mounting bore; a removable scraper blade tip comprising a scraping portion and a first mounting leg extending from the scraper blade tip and adapted to be received by the pocket and comprising a receptor extending between a front and back surface of the mounting leg, the scraper blade tip movable between a first position and second position where the receptor is substantially concentrically aligned with the front and back wall mounting bores to form a through hole configured to receive and capture a fastener adapted to be removeably inserted within the through hole when the scraper blade tip is in the second position. [0011] The conveyor belt cleaner system of further comprises a front flange extending from the support frame towards the front wall. The front flange comprises an access bore substantially concentrically aligned with the mounting bore in the front wall. In the conveyor belt cleaner system, the pocket extends from the top surface of the support frame at an angle with respect to the top surface and the pocket is comprised of metal. [0012] In another embodiment, a support frame for a conveyor belt cleaner for cleaning a surface of conveyor belt comprises: a top surface; and a pocket extending from the top surface. The pocket comprises a front and back wall and sidewalls of metal. The front and back walls each comprise a concentrically aligned mounting bore; a pocket space defined by the front and back wall and sidewalls with the pocket space configured to receive the base portion of a scraper blade tip, and wherein the scraper blade tip comprises a receptor that concentrically aligns with the mounting bore to form a through hole for receiving the fastener configured to releasably secure the scraper blade tip within the pocket space. [0013] Another embodiment of the invention comprises a method of assembling a conveyor belt cleaner for cleaning a surface of a conveyor belt comprising: (a) providing a support frame comprising: a top surface; (b) providing a pocket extending from the top surface of the support frame, the pocket comprising a front and back wall and sidewalls defining a pocket space; (c) boring concentrically aligned mounting bores in the front and back walls; (d) providing a removable scraper blade tip comprising a scraping portion and a first mounting leg extending from the scraper blade tip and adapted to be received by the pocket; (e) boring a receptor into the first mounting leg, the receptor extending from a front surface of the mounting leg to a back surface of the mounting leg; (f) inserting the mounting leg within the pocket space until the receptor is substantially concentrically aligned with the front and back wall mounting bores forming a through hole; and (g) providing a mounting pin adapted to be removably inserted within the through hole formed by the front and back wall bores to secure the scraper blade tip within the pocket. While a particular order of steps are stated in the foregoing examples of methods, other variations in steps or the order in which they are performed should be deemed as being within the scope of the invention. BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS [0014] FIG. 1 shows a side perspective view of a prior art conveyor belt scraper blade; [0015] FIG. 2 shows a bottom perspective view of a plurality of prior art conveyor belt scraper blades; [0016] FIG. 3 shows a side elevation view of a prior art conveyor belt scraper blade; [0017] FIG. 4 shows a front elevation view of a component of a prior art conveyor belt scraper blade; [0018] FIG. 5 shows a side elevation view of a component of a prior art conveyor belt scraper blade; [0019] FIG. 6 shows front and top perspective view of the pocket member of the inventive replaceable scraper blade tip and pocket; [0020] FIG. 7 shows side and front perspective view of the inventive replaceable scraper blade tip and pocket; Continue reading about Conveyor belt cleaner replaceable scraper blade tip and pocket and method of manufacturing same... Full patent description for Conveyor belt cleaner replaceable scraper blade tip and pocket and method of manufacturing same Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Conveyor belt cleaner replaceable scraper blade tip and pocket and method of manufacturing same patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Conveyor belt cleaner replaceable scraper blade tip and pocket and method of manufacturing same or other areas of interest. ### Previous Patent Application: Food stack aligning device for conveyor Next Patent Application: Wood conveying apparatus and system Industry Class: Conveyors: power-driven ### FreshPatents.com Support Thank you for viewing the Conveyor belt cleaner replaceable scraper blade tip and pocket and method of manufacturing same patent info. IP-related news and info Results in 0.32686 seconds Other interesting Feshpatents.com categories: Medical: Surgery , Surgery(2) , Surgery(3) , Drug , Drug(2) , Prosthesis , Dentistry 174 |
 * Protect your Inventions * US Patent Office filing 
PATENT INFO |
|
